EP2145749B1 - Installation de soufflage de corps creux comprenant un circuit de fluide thermorégulé sous pression - Google Patents
Installation de soufflage de corps creux comprenant un circuit de fluide thermorégulé sous pression Download PDFInfo
- Publication number
- EP2145749B1 EP2145749B1 EP09165242A EP09165242A EP2145749B1 EP 2145749 B1 EP2145749 B1 EP 2145749B1 EP 09165242 A EP09165242 A EP 09165242A EP 09165242 A EP09165242 A EP 09165242A EP 2145749 B1 EP2145749 B1 EP 2145749B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fluid
- circuit
- pressure
- enclosure
- temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Not-in-force
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/48—Moulds
- B29C49/4823—Moulds with incorporated heating or cooling means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/78—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/04—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam
- B29C35/041—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam using liquids
- B29C2035/042—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam using liquids other than water
- B29C2035/043—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam using liquids other than water oil
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/48—Moulds
- B29C49/4823—Moulds with incorporated heating or cooling means
- B29C2049/4838—Moulds with incorporated heating or cooling means for heating moulds or mould parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/48—Moulds
- B29C2049/4856—Mounting, exchanging or centering moulds or parts thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/78—Measuring, controlling or regulating
- B29C49/786—Temperature
- B29C2049/7864—Temperature of the mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2067/00—Use of polyesters or derivatives thereof, as moulding material
Definitions
- the present invention relates, in a general manner, to a blow molding installation for hollow bodies, in particular containers such as bottles, made of thermoplastic material, in particular PET, in which installation is provided at least one mold support to which a removable blow mold.
- the invention particularly relates to an installation of the aforementioned type comprising a carousel rotating at the periphery of which is provided a plurality of mold supports to which a plurality of respective removable blow molds can be secured (see for example the document DE 36 13 543 C1 ).
- the invention applies preferentially, although not exclusively, to the blow-molding of hot-fillable hollow bodies, that is to say of hollow bodies, in particular of bottles, which must then be filled with a hot liquid (sterilization) or which must, after filling and closing, undergo a heat treatment (pasteurization).
- thermoplastic preforms which are blown from thermoplastic preforms previously heated in a thermal conditioning furnace at a temperature greater than their glass transition temperature but lower than their crystallization temperature
- a thermoregulated fluid under pressure for example water, whose temperature can reach up to 90 °, or oil, whose temperature can reach 140 °
- thermoregulated fluid being under pressure in the circuit
- these automatic closing means are actuated automatically at each stop of the blowing installation (for example during an emergency stop or during a stop to allow maintenance operations on the installation).
- These automatic closing means are also triggered when the maintenance agent opens the doors to access the heart of the blowing system.
- thermoregulated fluid remains under pressure in the circuit after the mold has been disconnected from its respective support, it is relatively difficult to re-fasten the mold to its respective support, since it is then necessary to exert a significant counterpressure force. .
- thermoregulated fluid is oil whose temperature may be greater than 100 ° C, because there is always, during this purge, liquid projection risks and burning of the maintenance agent.
- this solution is unsatisfactory from an environmental point of view.
- thermo-regulated fluid circuit arranged in such a way as to reduce the risks of projection of the hot fluid under pressure during the disconnecting the mold from its respective support while facilitating the attachment of the mold on its support.
- the counter-pressure of said auxiliary fluid can be lowered from its maximum pressure to substantially its minimum pressure and the thermoregulated fluid under pressure can relax in said variable volume chamber until its pressure reaches substantially atmospheric pressure. This reduces the risks of projection of the thermoregulated fluid under pressure out of the support when the mold is separated from its respective support while said automatic closing means of said circuit are malfunctioning.
- said enclosure comprises a movable inner wall separating said enclosure into two chambers of variable respective volumes, said first chamber being fluidly connected to said pressurized thermo-regulated fluid circuit and a second chamber being fluidly connected to said means Auxiliary fluid generators under adjustable pressure.
- said enclosure may be a bladder comprising a deformable inner membrane delimiting said first and second chambers.
- said enclosure is a substantially rigid enclosure.
- said enclosure is a substantially rigid enclosure comprising a deformable inner membrane delimiting said first and second chambers.
- said enclosure is a substantially rigid enclosure having a movable inner wall delimiting said first and second chambers; a preferred embodiment can then consist in that said enclosure is arranged in the form of a cylinder with a piston delimiting said first and second chambers.
- thermoregulated fluid circuit In order to allow the thermoregulated fluid to be placed at atmospheric pressure in the thermoregulated fluid circuit, it is desirable for the second pressurized fluid circuit to comprise means for exhausting outwardly from said auxiliary fluid under pressure.
- said second main branch may advantageously comprise two pressure gauges located respectively on either side of said valve integrated in said second main branch.
- a pressure switch can be provided in the second main branch between the valve of the second main branch and said connection of said fluid connection means of the support to said second main branch.
- an installation 1 (diagrammatically in the form of a block) of blow molding of hollow bodies, in particular of containers such as bottles, made of thermoplastic material comprises at least one support 2 of mold (schematized in the form of a block) to which can be detachably secured a mold 3 removable blow (schematically in the form of a block).
- the installation 1 can be arranged in the form of a carousel rotating around the periphery of which is provided a plurality of mold supports 2 to which can be detachably secured a plurality of molds 3 of respective removable blowing.
- Each support 2 comprises means 4 for fluidic connection with a respective mold 3 thus enabling the formation of at least one circuit 5 for circulating a heat-regulated fluid under pressure through at least one of said supports 2 and one of said respective molds 3, the thermal regulation of the fluid being obtained using thermoregulatory means 6.
- at least two molds 3 can be connected to the same circuit 5 of temperature control fluid.
- thermoregulated fluid may be either water or oil and thus allows the heating of the mold, the circulation channels of said thermoregulated fluid being machined inside the mold.
- means for automatically closing the circuit 5 are provided in the support 2.
- these automatic closing means may be in the form of a shutoff shutoff valve. automatic and are actuated during a shutdown of the installation 1, for example either following a technical incident on the installation 1, or following an opening of doors to access the heart of the installation 1.
- thermoregulated fluid circuit 5 is fluidly connected to an enclosure 7 which has a variable volume chamber 8.
- Auxiliary fluid generating means 9 at an adjustable pressure can vary the pressure of said auxiliary fluid between a maximum pressure substantially equal to the pressure of the thermoregulated fluid under pressure present in said circuit 5 and a minimum pressure substantially equal to the atmospheric pressure.
- Said generating means 9 are connected to the enclosure 7 outside the chamber 8 so that said variable volume chamber 8 is subjected to the counterpressure of said adjustable pressure auxiliary fluid.
- thermoregulated fluid under pressure can relax in said variable volume chamber 8. its pressure substantially reaches atmospheric pressure.
- the pressure of the thermoregulated fluid present in the circuit 5 has therefore been lowered substantially to atmospheric pressure and, even if the automatic closing means of the circuit 5 are malfunctioning, the risk of projection is reduced. of thermoregulated fluid under pressure out of the support 2.
- auxiliary fluid generators under adjustable pressure can be included in a second circuit 10 of auxiliary fluid under pressure, such as pressurized air.
- the second circuit 10 may advantageously comprise means for exhausting outwardly of said auxiliary fluid under pressure.
- the enclosure 7 comprises a wall 11 internal, perfectly sealed, of the mobile or deformable type, separating said enclosure 7 into two chambers respectively 8 and 12 of respective internal volumes variables.
- a first chamber which is none other than the aforementioned chamber 8, is fluidly connected to the circuit 5 of heat-regulated fluid under pressure;
- a second chamber 12, separated from said chamber 8 by the wall 11, is fluidly connected to the means 9 generating auxiliary fluid under adjustable pressure, in particular to the second circuit 10 of auxiliary fluid under pressure.
- the enclosure 7 may be a bladder with a wall 11 constituted in the form of a deformable integrated membrane (for example of rubber) delimiting said first and second chambers 8, 12.
- said enclosure 7 may be a substantially rigid enclosure.
- said enclosure 7 is a substantially rigid enclosure comprising a wall 11 in the form of a deformable inner membrane (for example of the diaphragm type) delimiting said first and second chambers 8, 12.
- a substantially rigid enclosure comprising a displaceable inner wall 11 delimiting said first and second chambers 8, 12; a preferred embodiment can then consist in that said enclosure 7 is arranged in the form of a jack, the wall 11 being constituted by a movable piston delimiting said first and second chambers 8, 12.
- the second auxiliary fluid circuit 10 under pressure may include a pressure gauge 13 able to measure the pressure of said auxiliary fluid injected under pressure into the second chamber 12 of the chamber 7.
- the generating means 9 can be arranged to deliver an auxiliary fluid under any adjustable pressure, it is however simpler (and this perfectly meets the needs) to ensure that said means 9 generating auxiliary fluid is all-or-nothing type, selectively clean either to deliver an auxiliary fluid under a pressure substantially equal to the pressure of the thermoregulated fluid in said thermoregulated fluid circulation circuit 5, or to connect said second chamber 12 to the ATM atmosphere.
- the switching of the selector 36 from one output port to the other is coupled to the on / off command of the plant so that the ATM atmosphere of the second chamber 12 occurs automatically when a control command occurs. stopping the installation, and conversely that the connection of the chamber 12 with the generator 31 of pressurized auxiliary fluid occurs automatically when occurs an order to start the installation.
- the passage of the selector 36 to the outlet port connected to the ATM atmosphere may preferably be coupled with a stop command of the auxiliary fluid generator 31 under pressure.
- the second main branch 17 comprises two pressure gauges 26, 27 located respectively on either side of the valve 18 integrated in the second branch 17, and more precisely a first pressure gauge 26 integrated between the connection 25 of the transverse bypass branch 21 and the valve 18 of the second main branch 17 and a second pressure gauge 27 integrated between the valve 18 of the second main branch 17 and a connection 24 of the means 4 fluidic connection of the respective support 2. It is thus possible to verify the proper functioning of the valve 18 of the second main branch 17 by the presence of these gauges 26, 27 on either side of the valve 18.
- a pressure switch 29 can be provided in the second main branch 17 between the valve 18 of the second main branch 17 and the connection 24.
- thermoregulated fluid in the enclosure 7 comprising at least one chamber 8 of variable volume and by modifying the pressure exerted on the volume of thermoregulated fluid enclosed in the chamber 8 of the chamber 7.
- thermoregulated under pressure which are constituted by the valves 15, 18 of the first and second main branches 14, 17 and which make it possible to form a part of the circuit 5, in which are the mold 3 and the enclosure 7, the pressure of which fluid can be regulated by expansion of this fluid in the chamber 7. This reduces the pressure of the fluid flowing in the mold 2 and thus reduce the risk of projection of the fluid during the separation of the mold 3 of its support 2 .
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- External Artificial Organs (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0854899A FR2933893B1 (fr) | 2008-07-18 | 2008-07-18 | Installation de soufflage de corps creux comprenant un circuit de fluide thermoregule sous pression |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2145749A1 EP2145749A1 (fr) | 2010-01-20 |
EP2145749B1 true EP2145749B1 (fr) | 2010-11-10 |
Family
ID=40404170
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09165242A Not-in-force EP2145749B1 (fr) | 2008-07-18 | 2009-07-10 | Installation de soufflage de corps creux comprenant un circuit de fluide thermorégulé sous pression |
Country Status (9)
Country | Link |
---|---|
US (1) | US8142177B2 (ja) |
EP (1) | EP2145749B1 (ja) |
JP (1) | JP2010023514A (ja) |
CN (1) | CN101628474B (ja) |
AT (1) | ATE487589T1 (ja) |
DE (1) | DE602009000339D1 (ja) |
ES (1) | ES2355934T3 (ja) |
FR (1) | FR2933893B1 (ja) |
MX (1) | MX2009007778A (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010021446A1 (de) * | 2010-05-25 | 2011-12-01 | Krones Ag | Verfahren und Vorrichtung zur Temperierung von Vorformlingen |
CN107599260A (zh) * | 2017-10-23 | 2018-01-19 | 天津蓝科机械有限公司 | 一种多功能模温机 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4367785A (en) * | 1981-02-09 | 1983-01-11 | Logic Devices, Inc. | Liquid circulation method and apparatus |
DE3613543C1 (de) * | 1986-04-22 | 1986-12-18 | Fried. Krupp Gmbh, 4300 Essen | Schnellspanneinheit für eine Blasform |
JP2562388B2 (ja) * | 1991-05-29 | 1996-12-11 | 宇部興産株式会社 | ブロー成形方法および成形装置 |
JP2538476B2 (ja) * | 1992-02-12 | 1996-09-25 | リョービ株式会社 | 金型冷却装置 |
JPH09295317A (ja) * | 1996-05-01 | 1997-11-18 | Nippon Steel Chem Co Ltd | プラスチック成形金型温調装置および金型温調方法 |
JP2001246628A (ja) * | 2000-03-07 | 2001-09-11 | Canon Inc | 金型の交換方法、金型の交換装置、および金型装置 |
CA2393675C (en) * | 2000-09-25 | 2006-04-11 | J.F.T. Co. Ltd. | Mold cooling device |
FR2877872B1 (fr) * | 2004-11-18 | 2007-03-02 | Sidel Sas | Moule a insert pour une machine de soufflage de recipients |
US7857613B2 (en) * | 2006-12-08 | 2010-12-28 | Nestle Waters North America Inc. | Mold cooling by recovery of energy from spent compressed air in blow-molding process |
JP2009255367A (ja) * | 2008-04-16 | 2009-11-05 | Toyota Motor Corp | 金型 |
-
2008
- 2008-07-18 FR FR0854899A patent/FR2933893B1/fr not_active Expired - Fee Related
-
2009
- 2009-07-10 AT AT09165242T patent/ATE487589T1/de not_active IP Right Cessation
- 2009-07-10 EP EP09165242A patent/EP2145749B1/fr not_active Not-in-force
- 2009-07-10 ES ES09165242T patent/ES2355934T3/es active Active
- 2009-07-10 DE DE602009000339T patent/DE602009000339D1/de active Active
- 2009-07-17 US US12/504,997 patent/US8142177B2/en not_active Expired - Fee Related
- 2009-07-17 JP JP2009169397A patent/JP2010023514A/ja active Pending
- 2009-07-17 CN CN200910165122.5A patent/CN101628474B/zh not_active Expired - Fee Related
- 2009-07-20 MX MX2009007778A patent/MX2009007778A/es active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
FR2933893B1 (fr) | 2010-08-27 |
DE602009000339D1 (de) | 2010-12-23 |
JP2010023514A (ja) | 2010-02-04 |
US8142177B2 (en) | 2012-03-27 |
US20100047378A1 (en) | 2010-02-25 |
MX2009007778A (es) | 2010-03-22 |
CN101628474A (zh) | 2010-01-20 |
EP2145749A1 (fr) | 2010-01-20 |
ES2355934T3 (es) | 2011-04-01 |
ATE487589T1 (de) | 2010-11-15 |
CN101628474B (zh) | 2013-08-28 |
FR2933893A1 (fr) | 2010-01-22 |
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